Campierganj (on the name of British "station master" of this railway station) also called as Chaumukha, is a small Town in the province of Uttar Pradesh in north India, approximately 34 km (21 mi) north of Gorakhpur city near the border with Nepal on National Highway-24 (NH-24) in Gorakhpur District.

This is situated on the Buddhist Circuit which is built from Lumbini (Nepal), Kushinagar, Sarnath up to Bodh Gaya.

Campierganj is a Tahsil (subdivision) in Gorakhpur district of Uttar Pradesh.

Other nearest towns to Campierganj are Pharenda, Peppeganj, Paniara and Mehdaval bazar in range of 20 km.

An ancient famous temple of god Shiva located at Gaurishankar village is approximately 6 km far from Campierganj towards west.